part of the known drug smuggle ing area in that city. the f.b.i. is now investigating. >> each time that a law enforcement person is killed or shot or injured in the line of duty, we have to take a moment and think of the families and the heroes involved. we very much feel in our hearts and prayers going to the families. >>trace: officials named that border patrol station after brian terry. now, sir, what are authorities doing to find the suspects? >>guest: everything. this is a desert area that is flat, and runs up to the natural forest. it is a great area for smuggling but a difficult place to find someone. so we have virtually an army with helicopters in the air, a drone, as well, all looking for the suspects. early this morning at 2:00 a.m., local time, a sensor laid down by the border patrol on a known smuggling route, three agents went out. one was killed. another has two gunshots. he will be okay. a third was not hit. right new we told no one is in custody and no firearms have been recovered. here is what we don't know: how many shots were f